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Service bulletin 07-001-26

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11028094
Published by NHTSA2026-02-03
Manufacturer's number07-001-26
Manufacturer's date2026-01-16
NHTSA componentUNKNOWN OR OTHER
Manufacturer's systemHVAC

NHTSA's summary

Some customers may hear a repeating click sound when using the HVAC system (Auto A/C equipped vehicles only). The click sound may be caused by the air mix doors moving back and forth. This concern has been eliminated by a dash-electrical supply unit control software modification.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Vehicles listed
MAZDA CX-302020
MAZDA MAZDA32019, 2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.